COMPRESSORS, GAS TURBINES AND JET ENGINES QUIZ

Increase first at slow rate and then fast

Decrease continuously

Increase first at fast rate and then slow

First increase, reach maximum and then decrease

Vacuum

Atmosphere

Back to the compressor

Discharge nozzle

Turbine blades, which is a constant volume process

Exit nozzle, which is essentially an isentropic process

Exit nozzle, which is a constant volume process

Turbine blades, which is essentially an isentropic process

Higher at high altitudes

Lower at low speed

Same at all altitudes

Higher at high speed

Three times

Two times

Six times

Four times

p₁/p₃ = p₂/p₁

p₂/p₁ = p₃/p₂

p₁ = p₂ p3

p₁ = p3

In the direction of motion of blades

Equal to zero

Opposite to the direction of motion of blades

Depending on the velocity

Work done in first stage should be more

Work done in subsequent stages should increase

Work done in all stages should be equal

Work done in subsequent stages should decrease

Compression ratio

Volumetric efficiency

Compressor efficiency

Expansion ratio

Same

Higher

Dependent on other factors

Lower